Estimating geocenter motion and changes in the Earth’s dynamic oblateness from GRACE and geophysical models

Yu Sun

Research output: ThesisDissertation (TU Delft)

33 Downloads (Pure)

Abstract

Geocenter motion and changes in the Earth’s dynamic oblateness (J2) are of great importance in many applications. Among others, they are critical indicators of largescale mass redistributions, which is invaluable to understand ongoing global climate change. The revolutionary Gravity Recovery and Climate Experiment (GRACE) satellite mission enables a constant monitoring of redistributing masses within the Earth’s system. However, it still cannot provide reliable time variations in degree-1 coefficients and degree-2 zonal coefficients, which are directly related to geocenter motion and J2 variations.
Original languageEnglish
Awarding Institution
  • Delft University of Technology
Supervisors/Advisors
  • Klees, R., Supervisor
  • Riva, R.E.M., Advisor
Award date24 Oct 2017
Print ISBNs978-94-6361-016-2
DOIs
Publication statusPublished - 2017

Keywords

  • Geocenter motion
  • J2
  • Temporal gravity field variations
  • Mass transport
  • Glacial isostatic adjustment
  • GRACE
  • Satellite Laser Ranging

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